As a software engineer at Apple and as an investment strategist at Goldman Sachs, Alex Fishman made very good money, which he spent at some of the world's nicest restaurants. But one moment reliably brought dread. ()

By CHRISTINE LAGORIO-CHAFKIN

As a software engineer at Apple and as an investment strategist at Goldman Sachs, Alex Fishman made very good money, which he spent at some of the world's nicest restaurants. But one moment reliably b...